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Diffstat (limited to 'util/libreboot-utils/lib/rand.c')
| -rw-r--r-- | util/libreboot-utils/lib/rand.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/util/libreboot-utils/lib/rand.c b/util/libreboot-utils/lib/rand.c index 9304d83a..10831e44 100644 --- a/util/libreboot-utils/lib/rand.c +++ b/util/libreboot-utils/lib/rand.c @@ -86,6 +86,7 @@ rsize(size_t n) if (!n) err_no_cleanup(0, EFAULT, "rsize: division by zero"); + /* rejection sampling (clamp rand to eliminate modulo bias) */ for (; rval >= SIZE_MAX - (SIZE_MAX % n); rset(&rval, sizeof(rval))); return rval % n; |